Application of CaCO3, CaF2, SiO2, and TiO2 particles to silicone lens for enhancing angular color uniformity of white LED lamp

6th International Conference on Manufacturing Engineering and Process

工业技术;物理学

Nguyen, Anh Q. D.^1 ; Nguyen, Vinh H.^1

Nguyen Tat Thanh University, Ho Chi Minh City, Viet Nam^1

关键词: Color temperatures;    Color uniformity;    High quality;    Mie scattering theory;    Optimal selection;    Practical guidelines;    Quality improvement;    Specific optical properties;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/885/1/012022/pdf
DOI  :  10.1088/1742-6596/885/1/012022

学科分类：工业工程学

来源: IOP

【 摘 要 】

In this study, we present an insightful investigation on optimal selection of scattering enhancement particles (SEP) to satisfy each specific optical property of white LEDs (WLEDs). The interested contenders include CaCO3, CaF2, SiO2, and TiO2, each of them is added with YAG:Ce phosphor compounding. The quality improvement on each considered property is demonstrated convincingly by applying Mie-scattering theory together with Monte Carlo simulation on a particular WLEDs which has the color temperature of 8500K. It is observed by simulation results that TiO2particles provide the highest color uniformity among the SEP, as increasing TiO2concentration. These results of this work can serve as a practical guideline for manufacturing high-quality WLEDs.